topic FRDM-STBC-AGM01 voltage in Sensors https://community.nxp.com/t5/Sensors/FRDM-STBC-AGM01-voltage/m-p/540893#M3366 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I managed to get the board working but there is one thing that bothers me. Arduino is a 5V device but max VDD for FXAS21002C and FXOS8700CQ is 3.3V. So the SDA and SCL (or SCLK and MOSI) coming from arduino is 5V. I read the datasheet but there is no info about 5V tolarance. Can it damage in any way FXAS21002C or FXOS8700CQ?</P></BODY></HTML> Tue, 03 Feb 2026 22:53:07 GMT def152 2026-02-03T22:53:07Z FRDM-STBC-AGM01 voltage https://community.nxp.com/t5/Sensors/FRDM-STBC-AGM01-voltage/m-p/540893#M3366 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I managed to get the board working but there is one thing that bothers me. Arduino is a 5V device but max VDD for FXAS21002C and FXOS8700CQ is 3.3V. So the SDA and SCL (or SCLK and MOSI) coming from arduino is 5V. I read the datasheet but there is no info about 5V tolarance. Can it damage in any way FXAS21002C or FXOS8700CQ?</P></BODY></HTML> Tue, 03 Feb 2026 22:53:07 GMT https://community.nxp.com/t5/Sensors/FRDM-STBC-AGM01-voltage/m-p/540893#M3366 def152 2026-02-03T22:53:07Z Re: FRDM-STBC-AGM01 voltage https://community.nxp.com/t5/Sensors/FRDM-STBC-AGM01-voltage/m-p/540894#M3367 <HTML><HEAD></HEAD><BODY><P>Hi Karol,</P><P></P><P>I²C pin (SDA and SCL)&nbsp; are usually "open drain", and pull up resistors are required to make the communication works. So you would be able to drive the board with 2 pull up resistors connected to 3.3V.</P><P>Please check out the following webpage: <A href="http://playground.arduino.cc/Main/I2CBi-directionalLevelShifter" title="http://playground.arduino.cc/Main/I2CBi-directionalLevelShifter">Arduino Playground - I2CBi-directionalLevelShifter</A> </P><P></P><P>Thanks,</P><P>Anthony</P></BODY></HTML> Mon, 22 Aug 2016 07:51:55 GMT https://community.nxp.com/t5/Sensors/FRDM-STBC-AGM01-voltage/m-p/540894#M3367 anthonyduhamel 2016-08-22T07:51:55Z